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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A090077 In binary expansion of n: reduce contiguous blocks of 1's to 1.

Table of values

n a(n)
0 0
1 1
2 2
3 1
4 4
5 5
6 2
7 1
8 8
9 9
10 10
11 5
12 4
13 5
14 2
15 1
16 16
17 17
18 18
19 9
20 20
21 21
22 10
23 5
24 8
25 9
26 10
27 5
28 4
29 5
30 2
31 1
32 32
33 33
34 34
35 17
36 36
37 37
38 18
39 9
40 40
41 41
42 42
43 21
44 20
45 21
46 10
47 5
48 16
49 17
50 18
51 9
52 20
53 21
54 10
55 5
56 8
57 9
58 10
59 5
60 4
61 5
62 2
63 1
64 64
65 65
66 66
67 33
68 68
69 69
70 34
71 17
72 72
73 73
74 74
75 37
76 36
77 37
78 18
79 9

List of values

[0, 1, 2, 1, 4, 5, 2, 1, 8, 9, 10, 5, 4, 5, 2, 1, 16, 17, 18, 9, 20, 21, 10, 5, 8, 9, 10, 5, 4, 5, 2, 1, 32, 33, 34, 17, 36, 37, 18, 9, 40, 41, 42, 21, 20, 21, 10, 5, 16, 17, 18, 9, 20, 21, 10, 5, 8, 9, 10, 5, 4, 5, 2, 1, 64, 65, 66, 33, 68, 69, 34, 17, 72, 73, 74, 37, 36, 37, 18, 9]

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